Gwan-gyeong Mun [Thu, 19 Sep 2019 19:53:04 +0000 (22:53 +0300)]
drm/i915/dp: Extend program of VSC Header and DB for Colorimetry Format
It refactors and renames a function which handled vsc sdp header and data
block setup for supporting colorimetry format.
Function intel_dp_setup_vsc_sdp handles vsc sdp header and data block
setup for pixel encoding / colorimetry format.
In order to use colorspace information of a connector, it adds an argument
of drm_connector_state type.
Setup VSC header and data block in function intel_dp_setup_vsc_sdp for
pixel encoding / colorimetry format as per dp 1.4a spec, section 2.2.5.7.1,
table 2-119: VSC SDP Header Bytes, section 2.2.5.7.5,
table 2-120: VSC SDP Payload for DB16 through DB18.
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190919195311.13972-2-gwan-gyeong.mun@intel.com
Chris Wilson [Tue, 15 Oct 2019 09:32:04 +0000 (10:32 +0100)]
drm/i915/execlists: Clear semaphore immediately upon ELSP promotion
There is no significance to our delay before clearing the semaphore the
engine is waiting on, so release it as soon as we acknowledge the CS
update following our preemption request. This should allow the GPU to
resume work earlier, if it was stuck on the semaphore at the end of a
request.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015093204.25693-1-chris@chris-wilson.co.uk
Chris Wilson [Tue, 15 Oct 2019 10:01:55 +0000 (11:01 +0100)]
drm/i915: Remove leftover vma->obj->pages_pin_count on insert/remove
We now do the page pin count upfront in vma_get_pages/vma_put_pages, so
that we do the allocations before we enter the vm->mutex. Our vma
page references we are tracked in vma->pages_count and the extra
obj->pages_pin_count being performed later in i915_vma_insert and
i915_vma_remove is redundant, and worse throws off the shrinker's logic
on when it can free an object by unbinding it.
Reported-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reported-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015100155.10376-1-chris@chris-wilson.co.uk
Chris Wilson [Tue, 15 Oct 2019 09:39:15 +0000 (10:39 +0100)]
drm/i915: Drop obj.page_pin_count after a failed vma->set_pages()
Before we attempt to set_pages on the vma, we claim a
obj.pages_pin_count for it. If we subsequently fail to set the pages on
the vma, we need to drop our pinning before returning the error.
Reported-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015093915.3995-1-chris@chris-wilson.co.uk
Joonas Lahtinen [Tue, 15 Oct 2019 08:18:26 +0000 (11:18 +0300)]
Merge drm/drm-next into drm-intel-next-queued
Backmerging to pull in HDR DP code:
https://lists.freedesktop.org/archives/dri-devel/2019-September/236453.html
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Lionel Landwerlin [Mon, 14 Oct 2019 20:14:04 +0000 (21:14 +0100)]
drm/i915/perf: allow holding preemption on filtered ctx
We would like to make use of perf in Vulkan. The Vulkan API is much
lower level than OpenGL, with applications directly exposed to the
concept of command buffers (pretty much equivalent to our batch
buffers). In Vulkan, queries are always limited in scope to a command
buffer. In OpenGL, the lack of command buffer concept meant that
queries' duration could span multiple command buffers.
With that restriction gone in Vulkan, we would like to simplify
measuring performance just by measuring the deltas between the counter
snapshots written by 2 MI_RECORD_PERF_COUNT commands, rather than the
more complex scheme we currently have in the GL driver, using 2
MI_RECORD_PERF_COUNT commands and doing some post processing on the
stream of OA reports, coming from the global OA buffer, to remove any
unrelated deltas in between the 2 MI_RECORD_PERF_COUNT.
Disabling preemption only apply to a single context with which want to
query performance counters for and is considered a privileged
operation, by default protected by CAP_SYS_ADMIN. It is possible to
enable it for a normal user by disabling the paranoid stream setting.
v2: Store preemption setting in intel_context (Chris)
v3: Use priorities to avoid preemption rather than the HW mechanism
v4: Just modify the port priority reporting function
v5: Add nopreempt flag on gem context and always flag requests
appropriately, regarless of OA reconfiguration.
Link: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/932
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014201404.22468-4-chris@chris-wilson.co.uk
Chris Wilson [Mon, 14 Oct 2019 20:14:03 +0000 (21:14 +0100)]
drm/i915/perf: Allow dynamic reconfiguration of the OA stream
Introduce a new perf_ioctl command to change the OA configuration of the
active stream. This allows the OA stream to be reconfigured between
batch buffers, giving greater flexibility in sampling. We inject a
request into the OA context to reconfigure the stream asynchronously on
the GPU in between and ordered with execbuffer calls.
Original patch for dynamic reconfiguration by Lionel Landwerlin.
Link: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/932
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014201404.22468-3-chris@chris-wilson.co.uk
Lionel Landwerlin [Mon, 14 Oct 2019 20:14:02 +0000 (21:14 +0100)]
drm/i915: add support for perf configuration queries
Listing configurations at the moment is supported only through sysfs.
This might cause issues for applications wanting to list
configurations from a container where sysfs isn't available.
This change adds a way to query the number of configurations and their
content through the i915 query uAPI.
v2: Fix sparse warnings (Lionel)
Add support to query configuration using uuid (Lionel)
v3: Fix some inconsistency in uapi header (Lionel)
Fix unlocking when not locked issue (Lionel)
Add debug messages (Lionel)
v4: Fix missing unlock (Dan)
v5: Drop lock when copying config content to userspace (Chris)
v6: Drop lock when copying config list to userspace (Chris)
Fix deadlock when calling i915_perf_get_oa_config() under
perf.metrics_lock (Lionel)
Add i915_oa_config_get() (Chris)
Link: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/932
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014201404.22468-2-chris@chris-wilson.co.uk
Lionel Landwerlin [Mon, 14 Oct 2019 20:14:01 +0000 (21:14 +0100)]
drm/i915/perf: introduce a versioning of the i915-perf uapi
Reporting this version will help application figure out what level of
the support the running kernel provides.
v2: Add i915_perf_ioctl_version() (Chris)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014201404.22468-1-chris@chris-wilson.co.uk
Chris Wilson [Mon, 14 Oct 2019 12:13:36 +0000 (13:13 +0100)]
drm/i915/execlists: Assert tasklet is locked for process_csb()
We rely on only the tasklet being allowed to call into process_csb(), so
assert that is locked when we do. As the tasklet uses a simple bitlock,
there is no strong lockdep checking so we must make do with a plain
assertion that the tasklet is running and assume that we are the
tasklet!
v2: Fixup intel_gt_sanitize() to prepare each engine for the reset so
that the locks are marked as held during the reset
v3: Check for existent function pointers for very early sanitisation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014121336.30137-1-chris@chris-wilson.co.uk
Vivek Kasireddy [Fri, 11 Oct 2019 00:26:18 +0000 (17:26 -0700)]
drm/i915/ehl: Port C's hotplug interrupt is associated with TC1 bits
On platforms that have the MCC PCH, Port C's hotplug interrupt
bits are mapped to TC1 bits.
Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011002618.3087-1-vivek.kasireddy@intel.com
Ville Syrjälä [Fri, 11 Oct 2019 20:20:30 +0000 (23:20 +0300)]
drm/i915: Favor last VBT child device with conflicting AUX ch/DDC pin
The first come first served apporoach to handling the VBT
child device AUX ch conflicts has backfired. We have machines
in the wild where the VBT specifies both port A eDP and
port E DP (in that order) with port E being the real one.
So let's try to flip the preference around and let the last
child device win once again.
Cc: stable@vger.kernel.org
Cc: Jani Nikula <jani.nikula@intel.com>
Tested-by: Masami Ichikawa <masami256@gmail.com>
Tested-by: Torsten <freedesktop201910@liggy.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111966
Fixes:
36a0f92020dc ("drm/i915/bios: make child device order the priority order")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011202030.8829-1-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
Chris Wilson [Sun, 13 Oct 2019 20:30:12 +0000 (21:30 +0100)]
drm/i915/execlists: Tweak virtual unsubmission
Since commit
e2144503bf3b ("drm/i915: Prevent bonded requests from
overtaking each other on preemption") we have restricted requests to run
on their chosen engine across preemption events. We can take this
restriction into account to know that we will want to resubmit those
requests onto the same physical engine, and so can shortcircuit the
virtual engine selection process and keep the request on the same
engine during unwind.
References:
e2144503bf3b ("drm/i915: Prevent bonded requests from overtaking each other on preemption")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ramlingam C <ramalingam.c@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191013203012.25208-1-chris@chris-wilson.co.uk
Chris Wilson [Mon, 14 Oct 2019 09:07:49 +0000 (10:07 +0100)]
drm/i915/selftests: Check that GPR are cleared for new contexts
We want the general purpose registers to be clear in all new contexts so
that we can be confident that no information is leaked from one to the
next.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014090757.32111-7-chris@chris-wilson.co.uk
Chris Wilson [Mon, 14 Oct 2019 09:07:48 +0000 (10:07 +0100)]
drm/i915/selftests: Check known register values within the context
Check the logical ring context by asserting that the registers hold
expected start during execution. (It's a bit chicken-and-egg for how
could we manage to execute our request if the registers were not being
updated. Still, it's nice to verify that the HW is working as expected.)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014090757.32111-6-chris@chris-wilson.co.uk
Chris Wilson [Sat, 12 Oct 2019 08:02:08 +0000 (09:02 +0100)]
drm/i915/display: Squelch kerneldoc warnings
Just a parameter rename,
drivers/gpu/drm/i915/display/intel_display.c:14425: warning: Function parameter or member '_new_plane_state' not described in 'intel_prepare_plane_fb'
drivers/gpu/drm/i915/display/intel_display.c:14425: warning: Excess function parameter 'new_state' description in 'intel_prepare_plane_fb'
drivers/gpu/drm/i915/display/intel_display.c:14534: warning: Function parameter or member '_old_plane_state' not described in 'intel_cleanup_plane_fb'
drivers/gpu/drm/i915/display/intel_display.c:14534: warning: Excess function parameter 'old_state' description in 'intel_cleanup_plane_fb'
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012080208.18774-1-chris@chris-wilson.co.uk
Chris Wilson [Sun, 13 Oct 2019 11:45:09 +0000 (12:45 +0100)]
drm/i915/selftests: Fixup naked 64b divide
drivers/gpu/drm/i915/intel_memory_region.o: in function `igt_mock_contiguous':
drivers/gpu/drm/i915/selftests/intel_memory_region.c:166: undefined reference to `__umoddi3'
v2: promote target to u64 for consistency across all builds
Reported-by: kbuild test robot <lkp@intel.com>
Fixes:
2f0b97ca0211 ("drm/i915/region: support contiguous allocations")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191013114509.3405-1-chris@chris-wilson.co.uk
Chris Wilson [Sun, 13 Oct 2019 09:52:11 +0000 (10:52 +0100)]
drm/i915/perf: Avoid polluting the i915_oa_config with error pointers
Use a local variable to track the allocation errors to avoid polluting
the struct and keep the free simple.
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191013095211.2922-1-chris@chris-wilson.co.uk
Chris Wilson [Sat, 12 Oct 2019 09:10:56 +0000 (10:10 +0100)]
drm/i915/perf: Prefer using the pinned_ctx for emitting delays on config
When we are watching a particular context, we want the OA config to be
applied inline with that context such that it takes effect before the
next submission.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012091056.28686-1-chris@chris-wilson.co.uk
Lionel Landwerlin [Sat, 12 Oct 2019 07:23:08 +0000 (08:23 +0100)]
drm/i915/perf: execute OA configuration from command stream
We haven't run into issues with programming the global OA/NOA
registers configuration from CPU so far, but HW engineers actually
recommend doing this from the command streamer. On TGL in particular
one of the clock domain in which some of that programming goes might
not be powered when we poke things from the CPU.
Since we have a command buffer prepared for the execbuffer side of
things, we can reuse that approach here too.
This also allows us to significantly reduce the amount of time we hold
the main lock.
v2: Drop the global lock as much as possible
v3: Take global lock to pin global
v4: Create i915 request in emit_oa_config() to avoid deadlocks (Lionel)
v5: Move locking to the stream (Lionel)
v6: Move active reconfiguration request into i915_perf_stream (Lionel)
v7: Pin VMA outside request creation (Chris)
Lock VMA before move to active (Chris)
v8: Fix double free on stream->initial_oa_config_bo (Lionel)
Don't allow interruption when waiting on active config request
(Lionel)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012072308.30312-3-chris@chris-wilson.co.uk
Lionel Landwerlin [Sat, 12 Oct 2019 07:23:07 +0000 (08:23 +0100)]
drm/i915/perf: implement active wait for noa configurations
NOA configuration take some amount of time to apply. That amount of
time depends on the size of the GT. There is no documented time for
this. For example, past experimentations with powergating
configuration changes seem to indicate a 60~70us delay. We go with
500us as default for now which should be over the required amount of
time (according to HW architects).
v2: Don't forget to save/restore registers used for the wait (Chris)
v3: Name used CS_GPR registers (Chris)
Fix compile issue due to rebase (Lionel)
v4: Fix save/restore helpers (Umesh)
v5: Move noa_wait from drm_i915_private to i915_perf_stream (Lionel)
v6: Add missing struct declarations in i915_perf.h
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012072308.30312-2-chris@chris-wilson.co.uk
Lionel Landwerlin [Sat, 12 Oct 2019 07:23:06 +0000 (08:23 +0100)]
drm/i915/perf: allow for CS OA configs to be created lazily
Here we introduce a mechanism by which the execbuf part of the i915
driver will be able to request that a batch buffer containing the
programming for a particular OA config be created.
We'll execute these OA configuration buffers right before executing a
set of userspace commands so that a particular user batchbuffer be
executed with a given OA configuration.
This mechanism essentially allows the userspace driver to go through
several OA configuration without having to open/close the i915/perf
stream.
v2: No need for locking on object OA config object creation (Chris)
Flush cpu mapping of OA config (Chris)
v3: Properly deal with the perf_metric lock (Chris/Lionel)
v4: Fix oa config unref/put when not found (Lionel)
v5: Allocate BOs for configurations on the stream instead of globally
(Lionel)
v6: Fix 64bit division (Chris)
v7: Store allocated config BOs into the stream (Lionel)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012072308.30312-1-chris@chris-wilson.co.uk
Chris Wilson [Sat, 12 Oct 2019 07:01:36 +0000 (08:01 +0100)]
drm/i915: Mark up "sentinel" requests
Sometimes we want to emit a terminator request, a request that flushes
the pipeline and allows no request to come after it. This can be used
for a "preempt-to-idle" to ensure that upon processing the
context-switch to that request, all other active contexts have been
flushed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012070136.32058-1-chris@chris-wilson.co.uk
Chris Wilson [Fri, 11 Oct 2019 19:03:25 +0000 (20:03 +0100)]
drm/i915/execlists: Prevent merging requests with conflicting flags
We set out-of-bound parameters inside the i915_requests.flags field,
such as disabling preemption or marking the end-of-context. We should
not coalesce consecutive requests if they have differing instructions
as we only inspect the last active request in a context. Thus if we
allow a later request to be merged into the same execution context, it
will mask any of the earlier flags.
References:
2a98f4e65bba ("drm/i915: add infrastructure to hold off preemption on a request")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011190325.10979-9-chris@chris-wilson.co.uk
Chris Wilson [Fri, 11 Oct 2019 19:03:17 +0000 (20:03 +0100)]
drm/i915/perf: Replace global wakeref tracking with engine-pm
As we now have a specific engine to use OA on, exchange the top-level
runtime-pm wakeref with the engine-pm. This still results in the same
top-level runtime-pm, but with more nuances to keep the engine and its
gt awake.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011190325.10979-1-chris@chris-wilson.co.uk
Chris Wilson [Fri, 11 Oct 2019 19:36:20 +0000 (20:36 +0100)]
drm/i915/selftests: Serialise write to scratch with its vma binding
Add the missing serialisation on the request for a write into a vma to
wait until that vma is bound before being executed by the GPU.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011193620.14026-1-chris@chris-wilson.co.uk
Chris Wilson [Fri, 11 Oct 2019 17:38:23 +0000 (18:38 +0100)]
drm/i915: Add an rcu_barrier option to i915_drop_caches
Sometimes a test has to wait for RCU to complete a grace period and
perform its callbacks, for example waiting for a close(fd) to actually
perform the fput(filp) and so trigger all the callbacks such as closing
GEM contexts. There is no trivial means of triggering an RCU barrier
from userspace, so add one for our convenience in
debugfs/i915_drop_caches
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011173823.20432-1-chris@chris-wilson.co.uk
Chris Wilson [Fri, 11 Oct 2019 10:33:45 +0000 (11:33 +0100)]
drm/i915/execlists: Only mark incomplete requests as -EIO on cancelling
Only the requests that have not completed do we want to change the
status of to signal the -EIO when cancelling the inflight set of requests
upon wedging.
Reported-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011103345.26013-1-chris@chris-wilson.co.uk
Chris Wilson [Thu, 10 Oct 2019 07:14:26 +0000 (08:14 +0100)]
drm/i915/execlists: Leave tell-tales as to why pending[] is bad
Before we BUG out with bad pending state, leave a telltale as to which
test failed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010071434.31195-2-chris@chris-wilson.co.uk
Chris Wilson [Thu, 10 Oct 2019 07:14:25 +0000 (08:14 +0100)]
drm/i915: Note the addition of timeslicing to the pretend scheduler
Since writing the comment that the scheduler is entirely passive, we've
added minimal timeslicing which adds the most primitive of active
elements (a timeout and reschedule).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010071434.31195-1-chris@chris-wilson.co.uk
Dave Airlie [Thu, 10 Oct 2019 23:30:52 +0000 (09:30 +1000)]
Merge tag 'drm-misc-next-2019-10-09-2' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.5:
UAPI Changes:
-Colorspace: Expose different prop values for DP vs. HDMI (Gwan-gyeong Mun)
-fourcc: Add DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED (Raymond)
-not_actually: s/ENOTSUPP/EOPNOTSUPP/ in drm_edid and drm_mipi_dbi. This should
not reach userspace, but adding here to specifically call that out (Daniel)
-i810: Prevent underflow in dispatch ioctls (Dan)
-komeda: Add ACLK sysfs attribute (Mihail)
-v3d: Allow userspace to clean up after render jobs (Iago)
Cross-subsystem Changes:
-MAINTAINERS:
-Add Alyssa & Steven as panfrost reviewers (Rob)
-Add Jernej as DE2 reviewer (Maxime)
-Add Chen-Yu as Allwinner maintainer (Maxime)
-staging: Make some stack arrays static const (Colin)
Core Changes:
-ttm: Allow drivers to specify their vma manager (to use gem mgr) (Gerd)
-docs: Various fixes in connector/encoder/bridge docs (Daniel, Lyude, Laurent)
-connector: Allow more than 3 possible encoders for a connector (José)
-dp_cec: Allow a connector to be associated with a cec device (Dariusz)
-various: Fix some compile/sparse warnings (Ville)
-mm: Ensure mm node removals are properly serialised (Chris)
-panel: Specify the type of panel for drm_panels for later use (Laurent)
-panel: Use drm_panel_init to init device and funcs (Laurent)
-mst: Refactors and cleanups in anticipation of suspend/resume support (Lyude)
-vram:
-Add lazy unmapping for gem bo's (Thomas)
-Unify and rationalize vram mm and gem vram (Thomas)
-Expose vmap and vunmap for gem vram objects (Thomas)
-Allow objects to be pinned at the top of vram to avoid fragmentation (Thomas)
Driver Changes:
-various: Include drm_bridge.h instead of relying on drm_crtc.h (Boris)
-ast/mgag200: Refactor show_cursor(), move cursor to top of video mem (Thomas)
-komeda:
-Add error event printing (behind CONFIG) and reg dump support (Lowry)
-Add suspend/resume support (Lowry)
-Workaround D71 shadow registers not flushing on disable (Lowry)
-meson: Add suspend/resume support (Neil)
-omap: Miscellaneous refactors and improvements (Tomi/Jyri)
-panfrost/shmem: Silence lockdep by using mutex_trylock (Rob)
-panfrost: Miscellaneous small fixes (Rob/Steven)
-sti: Fix warnings (Benjamin/Linus)
-sun4i:
-Add vcc-dsi regulator to sun6i_mipi_dsi (Jagan)
-A few patches to figure out the DRQ/start delay calc on dsi (Jagan/Icenowy)
-virtio:
-Add module param to switch resource reuse workaround on/off (Gerd)
-Avoid calling vmexit while holding spinlock (Gerd)
-Use gem shmem helpers instead of ttm (Gerd)
-Accommodate command buffer allocations too big for cma (David)
Cc: Rob Herring <robh@kernel.org>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Dariusz Marcinkiewicz <darekm@google.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Raymond Smith <raymond.smith@arm.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Mihail Atanassov <Mihail.Atanassov@arm.com>
Cc: Lowry Li <Lowry.Li@arm.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: Steven Price <steven.price@arm.com>
Cc: Benjamin Gaignard <benjamin.gaignard@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Icenowy Zheng <icenowy@aosc.io>
Cc: Iago Toral Quiroga <itoral@igalia.com>
Cc: David Riley <davidriley@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
# gpg: Signature made Thu 10 Oct 2019 01:00:47 AM AEST
# gpg: using RSA key
732C002572DCAF79
# gpg: Can't check signature: public key not found
# Conflicts:
# drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
# drivers/gpu/drm/i915/i915_drv.c
# drivers/gpu/drm/i915/i915_gem.c
# drivers/gpu/drm/i915/i915_gem_gtt.c
# drivers/gpu/drm/i915/i915_vma.c
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009150825.GA227673@art_vandelay
James Ausmus [Wed, 9 Oct 2019 17:23:15 +0000 (10:23 -0700)]
drm/i915/tgl: Read SAGV block time from PCODE
Starting from TGL, we now need to read the SAGV block time via a PCODE
mailbox, rather than having a static value.
BSpec: 49326
v2: Fix up pcode val data type (Ville), tighten variable scope (Ville)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: James Ausmus <james.ausmus@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004221449.1317-2-james.ausmus@intel.com
Link: https://patchwork.freedesktop.org/patch/msgid/20191009172315.11004-2-lucas.demarchi@intel.com
James Ausmus [Wed, 9 Oct 2019 17:23:14 +0000 (10:23 -0700)]
drm/i915: Move SAGV block time to dev_priv
In prep for newer platforms having more complicated ways to determine
the SAGV block time, move the variable to dev_priv, and extract the
setting to an initial setup function. While we're at it, update the if
ladder to follow the new gen -> old gen order preference, and warn on
any non-specified gen.
v2: Shorten the function name (Ville), return directly (Ville), move
sagv_block_time_us value to dev_priv (Ville)
v3: Change sagv_block_time_us to u32 (Lucas), Change fallback value to
-1 (Lucas), use intel_has_sagv for setup check rather than hand-rolling
(Lucas)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: James Ausmus <james.ausmus@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004221449.1317-1-james.ausmus@intel.com
Link: https://patchwork.freedesktop.org/patch/msgid/20191009172315.11004-1-lucas.demarchi@intel.com
Chris Wilson [Thu, 10 Oct 2019 15:05:20 +0000 (16:05 +0100)]
drm/i915/perf: Store shortcut to intel_uncore
Now that we have the engine stored in i915_perf, we have a means of
accessing intel_gt should we require it. However, we are currently only
using the intel_gt to find the right intel_uncore, so replace our
i915_perf.gt pointer with the more useful i915_perf.uncore.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010150520.26488-2-chris@chris-wilson.co.uk
Lionel Landwerlin [Thu, 10 Oct 2019 15:05:19 +0000 (16:05 +0100)]
drm/i915/perf: store the associated engine of a stream
We'll use this information later to verify that a client trying to
reconfigure the stream does so on the right engine. For now, we want to
pull the knowledge of which engine we use into a central property.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010150520.26488-1-chris@chris-wilson.co.uk
Maarten Lankhorst [Fri, 4 Oct 2019 11:34:54 +0000 (13:34 +0200)]
drm/i915: Remove cursor use of properties for coordinates
We have a src and dect rectangle, use it instead of relying on
the core drm properties.
Because the core by default clips the src/dst properties, after
the drm_atomic_helper_check_plane_state() we manually set the
unclipped src/dst rectangles. We still need the call for
visibility checks, but this way we are able to use the src/dst
rects in the check/commit code.
This removes the special case in the watermark code for cursor w/h.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004113514.17064-5-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[mlankhorst: Clarify commit message to state we use unclipped src/dst
Maarten Lankhorst [Fri, 4 Oct 2019 11:34:56 +0000 (13:34 +0200)]
drm/i915: Remove begin/finish_crtc_commit, v4.
This can all be done from the intel_update_crtc function. Split out the
pipe update into a separate function, just like is done for the planes.
Pull in all the changes done during fastset as well. It makes no sense
for it to still exist as a separate function.
Changes since v1:
- Inline intel_update_pipe_config()
Changes since v2:
- Add comments suggested by matt.
- Reorder commit_pipe_config() to remove all nesting. (Ville, Matt)
- Use intel_set_pipe_src_size((). (Matt)
Changes since v3:
- Move atomic_update_watermarks closer to the plane calls.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004113514.17064-7-maarten.lankhorst@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
[mlankhorst: Replace 8 spaces with tabs in comment]
Maarten Lankhorst [Fri, 4 Oct 2019 11:34:55 +0000 (13:34 +0200)]
drm/i915: Use intel_plane_state in prepare and cleanup plane_fb
We need to look at the hw fb in the plane split, so replace all the places
that use drm_plane_state with intel_plane_state.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004113514.17064-6-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[mlankhorst: Fix line wraps (Matt Roper)]
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Maarten Lankhorst [Fri, 4 Oct 2019 11:34:53 +0000 (13:34 +0200)]
drm/i915: Introduce and use intel_atomic_crtc_state_for_each_plane_state.
Instead of looking at drm_plane_state, look at intel_plane_state directly.
This will allow us to make the watermarks bigjoiner aware, when we make it
work for bigjoiner slave pipes as well.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004113514.17064-4-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Maarten Lankhorst [Fri, 4 Oct 2019 11:34:52 +0000 (13:34 +0200)]
drm/i915: Fix for_each_intel_plane_mask definition
Using for_each_intel_plane_mask() fails because of an extra bracket,
remove the bracket so we can use it in the next commit.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004113514.17064-3-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Chris Wilson [Thu, 10 Oct 2019 11:02:52 +0000 (12:02 +0100)]
drm/i915/selftests: Check that registers are preserved between virtual engines
Make sure that we copy across the registers from one engine to the next,
as we hop around a virtual engine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010110252.17289-1-chris@chris-wilson.co.uk
Chris Wilson [Thu, 10 Oct 2019 08:32:42 +0000 (09:32 +0100)]
drm/i915/execlists: Mark up expected state during reset
Move the BUG_ON around slightly and add some explanations for each to
try and capture the expected state more carefully. We want to compare
the expected active state of our bookkeeping as compared to the tracked
HW state.
References: https://bugs.freedesktop.org/show_bug.cgi?id=111937
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010083242.1387-1-chris@chris-wilson.co.uk
Chris Wilson [Wed, 2 Oct 2019 16:00:34 +0000 (17:00 +0100)]
drm/i915/gt: Warn CI about an unrecoverable wedge
If we have a wedged GPU that we need to recover, but fail, add a taint
for CI to pickup and schedule a reboot.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191002160034.5121-1-chris@chris-wilson.co.uk
Daniele Ceraolo Spurio [Wed, 9 Oct 2019 23:04:24 +0000 (16:04 -0700)]
drm/i915/tgl: simplify the lrc register list for !RCS
There are small differences between the blitter and the video engines in
the xcs context image (e.g. registers 0x200 and 0x204 only exist on the
blitter). Since we never explicitly set a value for those register and
given that we don't need to update the offsets in the lrc image when we
change engine within the class for virtual engine because the HW can
handle that, instead of having a separate define for the BCS we can
just restrict the programming to the part we're interested in, which is
common across the engines.
Bspec: 45584
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009230424.6507-2-daniele.ceraolospurio@intel.com
Daniele Ceraolo Spurio [Wed, 9 Oct 2019 23:04:23 +0000 (16:04 -0700)]
drm/i915/tgl: the BCS engine supports relative MMIO
The specs don't mention any specific HW limitation on the blitter and
manual inspection shows that the HW does set the relative MMIO bit in
the LRI of the blitter context image, so we can remove our limitations.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009230424.6507-1-daniele.ceraolospurio@intel.com
Chris Wilson [Wed, 9 Oct 2019 16:09:06 +0000 (17:09 +0100)]
drm/i915/gt: execlists->active is serialised by the tasklet
The active/pending execlists is no longer protected by the
engine->active.lock, but is serialised by the tasklet instead. Update
the locking around the debug and stats to follow suit.
v2: local_bh_disable() to prevent recursing into the tasklet in case we
trigger a softirq (Tvrtko)
Fixes:
df403069029d ("drm/i915/execlists: Lift process_csb() out of the irq-off spinlock")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009160906.16195-1-chris@chris-wilson.co.uk
Chris Wilson [Wed, 9 Oct 2019 10:09:54 +0000 (11:09 +0100)]
drm/i915/execlists: Protect peeking at execlists->active
Now that we dropped the engine->active.lock serialisation from around
process_csb(), direct submission can run concurrently to the interrupt
handler. As such execlists->active may be advanced as we dequeue,
dropping the reference to the request. We need to employ our RCU request
protection to ensure that the request is not freed too early.
Fixes:
df403069029d ("drm/i915/execlists: Lift process_csb() out of the irq-off spinlock")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009100955.21477-1-chris@chris-wilson.co.uk
Matt Roper [Tue, 8 Oct 2019 17:29:20 +0000 (10:29 -0700)]
drm/i915: Select DPLL's via mask
This slightly simplifies the EHL DPLL4 handling and also gives us more
flexibility in the future in case we need to skip the use of specific
PLL's (e.g., due to hardware workarounds and such).
v2:
- Replace GENMASK() with or'd BIT()'s to make the specific DPLLs more
explicit. (Ville)
- s/unsigned/unsigned long/. (Lucas)
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008172920.11362-1-matthew.d.roper@intel.com
Swati Sharma [Wed, 9 Oct 2019 06:55:40 +0000 (12:25 +0530)]
drm/i915/color: move check of gamma_enable to specific func/platform
Moved common code to check gamma_enable to specific funcs per platform
in bit_precision func. icl doesn't support that and chv has separate
enable knob for CGM LUT.
v2:
-Simplified chv_gamma_precision() [Ville]
Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009065542.27415-3-swati2.sharma@intel.com
Swati Sharma [Wed, 9 Oct 2019 06:55:39 +0000 (12:25 +0530)]
drm/i915/color: fix broken gamma state-checker during boot
Premature gamma lut prepration and loading which was getting
reflected in first modeset causing different colors on
screen during boot.
Issue: In BIOS, gamma is disabled by default. However, legacy read_luts()
was setting crtc_state->base.gamma_lut and gamma_lut was programmed
with junk values which led to visual artifacts (different
colored screens instead of usual black during boot).
Fix: Calling read_luts() only when gamma is enabled which will happen
after first modeset.
This fix is independent from the revert
1b8588741fdc ("Revert
"drm/i915/color: Extract icl_read_luts()"") and should fix different colors
on screen in legacy platforms too.
v2:
-Added gamma_enable checks inside read_luts() [Ville/Jani N]
-Corrected gamma enable check for CHV [Ville]
v3:
-Added check in ilk_read_luts() [Ville]
-Simplified gamma enable check for CHV [Ville]
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111809
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111885
Tested-by: Jani Saarinen <jani.saarinen@intel.com>
Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009065542.27415-2-swati2.sharma@intel.com
Colin Ian King [Wed, 9 Oct 2019 10:00:24 +0000 (11:00 +0100)]
drm/i915/selftests: fix null pointer dereference on pointer data
In the case where data fails to be allocated the error exit path is
via label 'out' where data is dereferenced in a for-loop. Fix this
by exiting via the label 'out_file' instead to avoid the null pointer
dereference.
Addresses-Coverity: ("Dereference after null check")
Fixes:
50d16d44cce4 ("drm/i915/selftests: Exercise context switching in parallel")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009100024.23077-1-colin.king@canonical.com
Chris Wilson [Wed, 9 Oct 2019 06:17:59 +0000 (07:17 +0100)]
drm/i915/selftests: Hold request reference over waits
Take a reference on the request before submitting it to the HW and then
waiting on it for selftest_workarounds. Once submitted, the request may
be freed by a background worker, unless we take an extra reference for
ourselves.
References: https://bugs.freedesktop.org/show_bug.cgi?id=111926
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009061759.3189-1-chris@chris-wilson.co.uk
Chris Wilson [Tue, 8 Oct 2019 18:59:41 +0000 (19:59 +0100)]
drm/i915/gt: Give engine->kernel_context distinct timeline lock classes
Assign a separate lockclass to the perma-pinned timelines of the
kernel_context, such that we can use them from within the user timelines
should we ever need to inject GPU operations to fixup faults during
request construction.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008185941.15228-1-chris@chris-wilson.co.uk
Matthew Auld [Tue, 8 Oct 2019 16:01:16 +0000 (17:01 +0100)]
drm/i915/region: support volatile objects
Volatile objects are marked as DONTNEED while pinned, therefore once
unpinned the backing store can be discarded. This is limited to kernel
internal objects.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: CQ Tang <cq.tang@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008160116.18379-4-matthew.auld@intel.com
Matthew Auld [Tue, 8 Oct 2019 16:01:15 +0000 (17:01 +0100)]
drm/i915/region: support contiguous allocations
Some kernel internal objects may need to be allocated as a contiguous
block, also thinking ahead the various kernel io_mapping interfaces seem
to expect it, although this is purely a limitation in the kernel
API...so perhaps something to be improved.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Cc: Michael J Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008160116.18379-3-matthew.auld@intel.com
Matthew Auld [Tue, 8 Oct 2019 16:01:14 +0000 (17:01 +0100)]
drm/i915: introduce intel_memory_region
Support memory regions, as defined by a given (start, end), and allow
creating GEM objects which are backed by said region. The immediate goal
here is to have something to represent our device memory, but later on
we also want to represent every memory domain with a region, so stolen,
shmem, and of course device. At some point we are probably going to want
use a common struct here, such that we are better aligned with say TTM.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008160116.18379-2-matthew.auld@intel.com
Chris Wilson [Tue, 8 Oct 2019 10:56:55 +0000 (11:56 +0100)]
drm/i915/gt: Flush submission tasklet before waiting/retiring
A common bane of ours is arbitrary delays in ksoftirqd processing our
submission tasklet. Give the submission tasklet a kick before we wait to
avoid those delays eating into a tight timeout.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008105655.13256-1-chris@chris-wilson.co.uk
Lionel Landwerlin [Tue, 8 Oct 2019 14:01:11 +0000 (15:01 +0100)]
drm/i915/perf: drop list of streams
At some point in time there was the idea that we could have multiple
stream from the same piece of HW but that never materialized and given
the hard time we already have making everything work with the
submission side, there is no real point having this list of 1 element
around.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008140111.5437-1-chris@chris-wilson.co.uk
Chris Wilson [Tue, 8 Oct 2019 14:50:45 +0000 (15:50 +0100)]
drm/i915/selftests: Assign the intel_runtime_pm pointer for mock_uncore
Couple up our mock_uncore to know about the fake global device and its
runtime powermanagement.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008145045.23157-1-chris@chris-wilson.co.uk
Sean Paul [Wed, 4 Sep 2019 20:29:13 +0000 (16:29 -0400)]
drm: damage_helper: Fix race checking plane->state->fb
Since the dirtyfb ioctl doesn't give us any hints as to which plane is
scanning out the fb it's marking as damaged, we need to loop through
planes to find it.
Currently we just reach into plane state and check, but that can race
with another commit changing the fb out from under us. This patch locks
the plane before checking the fb and will release the lock if the plane
is not displaying the dirty fb.
Fixes:
b9fc5e01d1ce ("drm: Add helper to implement legacy dirtyfb")
Cc: Rob Clark <robdclark@gmail.com>
Cc: Deepak Rawat <drawat@vmware.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.0+
Reported-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190904202938.110207-1-sean@poorly.run
Chris Wilson [Tue, 8 Oct 2019 07:11:21 +0000 (08:11 +0100)]
drm/i915/selftests: Assign the mock_engine->uncore shortcut
Set up the engine->uncore shortcut on mock_engine creation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008071121.25088-1-chris@chris-wilson.co.uk
Chris Wilson [Tue, 8 Oct 2019 07:03:42 +0000 (08:03 +0100)]
drm/i915/execlists: Assign virtual_engine->uncore from first sibling
Copy across the engine->uncore shortcut to the virtual_engine from its
first physical engine, similar to the handling of the engine->gt
backpointer.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008070342.4045-1-chris@chris-wilson.co.uk
Anshuman Gupta [Thu, 3 Oct 2019 08:17:38 +0000 (13:47 +0530)]
drm/i915/tgl: Add DC3CO counter in i915_dmc_info
Adding DC3CO counter in i915_dmc_info debugfs will be
useful for DC3CO validation.
DMC firmware uses DMC_DEBUG3 register as DC3CO counter
register on TGL, as per B.Specs DMC_DEBUG3 is general
purpose register.
v1: comment modification for DMC_DBUG3.
using GEN >= 12 check instead of IS_TIGERLAKE()
to print DMC_DEBUG3 counter value.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003081738.22101-7-anshuman.gupta@intel.com
Anshuman Gupta [Thu, 3 Oct 2019 08:17:37 +0000 (13:47 +0530)]
drm/i915/tgl: Switch between dc3co and dc5 based on display idleness
DC3CO is useful power state, when DMC detects PSR2 idle frame
while an active video playback, playing 30fps video on 60hz panel
is the classic example of this use case.
B.Specs:49196 has a restriction to enable DC3CO only for Video Playback.
It will be worthy to enable DC3CO after completion of each pageflip
and switch back to DC5 when display is idle because driver doesn't
differentiate between video playback and a normal pageflip.
We will use Frontbuffer flush call tgl_dc3co_flush() to enable DC3CO
state only for ORIGIN_FLIP flush call, because DC3CO state has primarily
targeted for VPB use case. We are not interested here for frontbuffer
invalidates calls because that triggers PSR2 exit, which will
explicitly disable DC3CO.
DC5 and DC6 saves more power, but can't be entered during video
playback because there are not enough idle frames in a row to meet
most PSR2 panel deep sleep entry requirement typically 4 frames.
As PSR2 existing implementation is using minimum 6 idle frames for
deep sleep, it is safer to enable DC5/6 after 6 idle frames
(By scheduling a delayed work of 6 idle frames, once DC3CO has been
enabled after a pageflip).
After manually waiting for 6 idle frames DC5/6 will be enabled and
PSR2 deep sleep idle frames will be restored to 6 idle frames, at this
point DMC will triggers DC5/6 once PSR2 enters to deep sleep after
6 idle frames.
In future when we will enable S/W PSR2 tracking, we can change the
PSR2 required deep sleep idle frames to 1 so DMC can trigger the
DC5/6 immediately after S/W manual waiting of 6 idle frames get
complete.
v2: calculated s/w state to switch over dc3co when there is an
update. [Imre]
Used cancel_delayed_work_sync() in order to avoid any race
with already scheduled delayed work. [Imre]
v3: Cancel_delayed_work_sync() may blocked the commit work.
hence dropping it, dc5_idle_thread() checks the valid wakeref before
putting the reference count, which avoids any chances of dropping
a zero wakeref. [Imre (IRC)]
v4: Used frontbuffer flush mechanism. [Imre]
v5: Used psr.pipe to extract frontbuffer busy bits. [Imre]
Used cancel_delayed_work_sync() in encoder disable path. [Imre]
Used mod_delayed_work() instead of cancelling and scheduling a
delayed work. [Imre]
Used psr.lock in tgl_dc5_idle_thread() to enable psr2 deep
sleep. [Imre]
Removed DC5_REQ_IDLE_FRAMES macro. [Imre]
v6: Used dc3co_exitline check instead of TGL and dc3co allowed_dc_mask
checks, used delayed_work_pending with the psr lock and removed the
psr2_deep_slp_disabled flag. [Imre]
v7: Code refactoring, moved most of functional code to inte_psr.c [Imre]
Using frontbuffer_bits on psr.pipe check instead of
busy_frontbuffer_bits. [Imre]
Calculating dc3co_exit_delay in intel_psr_enable_locked. [Imre]
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003081738.22101-6-anshuman.gupta@intel.com
Anshuman Gupta [Thu, 3 Oct 2019 08:17:36 +0000 (13:47 +0530)]
drm/i915/tgl: Do modeset to enable and configure DC3CO exitline
DC3CO enabling B.Specs sequence requires to enable end configure
exit scanlines to TRANS_EXITLINE register, programming this register
has to be part of modeset sequence as this can't be change when
transcoder or port is enabled.
When system boots with only eDP panel there may not be real
modeset as BIOS has already programmed the necessary registers,
therefore it needs to force a modeset to enable and configure
DC3CO exitline.
v1: Computing dc3co_exitline crtc state from a DP encoder
compute config. [Imre]
Enabling and disabling DC3CO PSR2 transcoder exitline from
encoder pre_enable and post_disable hooks. [Imre]
Computing dc3co_exitline instead of has_dc3co_exitline bool. [Imre]
v2: Code refactoring for symmetry and to avoid exported function. [Imre]
Removing IS_TIGERLAKE check from compute_config, adding PIPE_A
restriction and clearing dc3co_exitline state if crtc is not active
or it is not PSR2 capable in dc3co exitline compute_config. [Imre]
Using GEN >= 12 check in dc3co exitline get_config. [Imre]
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003081738.22101-5-anshuman.gupta@intel.com
Anshuman Gupta [Thu, 3 Oct 2019 08:17:35 +0000 (13:47 +0530)]
drm/i915/tgl: Enable DC3CO state in "DC Off" power well
Add target_dc_state and used by set_target_dc_state API
in order to enable DC3CO state with existing DC states.
target_dc_state will enable/disable the desired DC state in
DC_STATE_EN reg when "DC Off" power well gets disable/enable.
v2: commit log improvement.
v3: Used intel_wait_for_register to wait for DC3CO exit. [Imre]
Used gen9_set_dc_state() to allow/disallow DC3CO. [Imre]
Moved transcoder psr2 exit line enablement from tgl_allow_dc3co()
to a appropriate place haswell_crtc_enable(). [Imre]
Changed the DC3CO power well enabled call back logic as
recommended in review comments. [Imre]
v4: Used wait_for_us() instead of intel_wait_for_reg(). [Imre (IRC)]
v5: using udelay() instead of waiting for DC3CO exit status.
v6: Fixed minor unwanted change.
v7: Removed DC3CO powerwell and POWER_DOMAIN_VIDEO.
v8: Uniform checks by using only target_dc_state instead of allowed_dc_mask
in "DC off" power well callback. [Imre]
Adding "DC off" power well id to older platforms. [Imre]
Removed psr2_deep_sleep flag from tgl_set_target_dc_state. [Imre]
v9: Used switch case for target DC state in
gen9_dc_off_power_well_disable(), checking DC3CO state against
allowed DC mask, using WARN_ON() in
tgl_set_target_dc_state(). [Imre]
v10: Code refactoring and using sanitize_target_dc_state(). [Imre]
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003081738.22101-4-anshuman.gupta@intel.com
Anshuman Gupta [Thu, 3 Oct 2019 08:17:34 +0000 (13:47 +0530)]
drm/i915/tgl: Add DC3CO mask to allowed_dc_mask and gen9_dc_mask
Enable dc3co state in enable_dc module param and add dc3co
enable mask to allowed_dc_mask and gen9_dc_mask.
v1: Adding enable_dc=3,4 options to enable DC3CO with DC5 and DC6
independently. [Animesh]
v2: Using a switch statement for cleaner code. [Animesh]
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003081738.22101-3-anshuman.gupta@intel.com
Anshuman Gupta [Mon, 7 Oct 2019 09:46:07 +0000 (15:16 +0530)]
drm/i915/tgl: Add DC3CO required register and bits
Adding following definition to i915_reg.h
1. DC_STATE_EN register DC3CO bit fields and masks.
DC3CO enable bit will be used by driver to make DC3CO
ready for DMC f/w and status bit will be used as DC3CO
entry status.
2. Transcoder EXITLINE register and its bit fields and mask.
Transcoder EXITLINE enable bit represents PSR2 idle frame
reset should be applied at exit line and exitlines mask
represent required number of scanlines at which DC3CO
exit happens.
B.Specs:49196
v1: Use of REG_BIT and using extra space for EXITLINE_ macro
definition. [Animesh]
v2: Grouping EXITLINE reg bits with EXITLINE(trans) define,
no functional change. [Ville]
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191007094607.2111-1-anshuman.gupta@intel.com
Chris Wilson [Mon, 7 Oct 2019 21:09:42 +0000 (22:09 +0100)]
drm/i915/perf: Set the exclusive stream under perf->lock
The BKL struct_mutex is no more, the only serialisation we required for
setting the exclusive stream is already managed by ce->pin_mutex in
gen8_configure_all_contexts(). As such, we can manipulate
i915_perf.exclusive_stream underneath our own (already held) perf->lock.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191007140812.10963-2-chris@chris-wilson.co.uk
Link: https://patchwork.freedesktop.org/patch/msgid/20191007210942.18145-2-chris@chris-wilson.co.uk
Chris Wilson [Mon, 7 Oct 2019 21:09:41 +0000 (22:09 +0100)]
drm/i915/perf: Wean ourselves off dev_priv
Use the local uncore accessors for the GT rather than using the [not-so]
magic global dev_priv mmio routines. In the process, we also teach the
perf stream to use backpointers to the i915_perf rather than digging it
out of dev_priv.
v2: Rebase onto i915_perf_types.h
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> #v1
Link: https://patchwork.freedesktop.org/patch/msgid/20191007140812.10963-1-chris@chris-wilson.co.uk
Link: https://patchwork.freedesktop.org/patch/msgid/20191007210942.18145-1-chris@chris-wilson.co.uk
Krzysztof Kozlowski [Mon, 7 Oct 2019 17:33:46 +0000 (19:33 +0200)]
drm/i915: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191007173346.9379-1-krzk@kernel.org
Jagan Teki [Sun, 6 Oct 2019 16:03:00 +0000 (00:03 +0800)]
drm/sun4i: dsi: Fix video start delay computation
The LCD timing definitions between Linux DRM vs Allwinner are different,
below diagram shows this clear differences.
Active Front Sync Back
Region Porch Porch
<-----------------------><----------------><--------------><-------------->
//////////////////////|
////////////////////// |
////////////////////// |.................. ................
________________
<----- [hv]display ----->
<------------- [hv]sync_start ------------>
<--------------------- [hv]sync_end ---------------------->
<-------------------------------- [hv]total ------------------------------>
<----- lcd_[xy] --------> <- lcd_[hv]spw ->
<---------- lcd_[hv]bp --------->
<-------------------------------- lcd_[hv]t ------------------------------>
The DSI driver misinterpreted the vbp term from the BSP code to refer
only to the backporch, when in fact it was backporch + sync. Thus the
driver incorrectly used the vertical front porch plus sync in its
calculation of the DRQ set bit value, when it should not have included
the sync timing.
Including additional sync timings leads to flip_done timed out as:
WARNING: CPU: 0 PID: 31 at drivers/gpu/drm/drm_atomic_helper.c:1429 drm_atomic_helper_wait_for_vblanks.part.1+0x298/0x2a0
[CRTC:46:crtc-0] vblank wait timed out
Modules linked in:
CPU: 0 PID: 31 Comm: kworker/0:1 Not tainted 5.1.0-next-
20190514-00029-g09e5b0ed0a58 #18
Hardware name: Allwinner sun8i Family
Workqueue: events deferred_probe_work_func
[<
c010ed54>] (unwind_backtrace) from [<
c010b76c>] (show_stack+0x10/0x14)
[<
c010b76c>] (show_stack) from [<
c0688c70>] (dump_stack+0x84/0x98)
[<
c0688c70>] (dump_stack) from [<
c011d9e4>] (__warn+0xfc/0x114)
[<
c011d9e4>] (__warn) from [<
c011da40>] (warn_slowpath_fmt+0x44/0x68)
[<
c011da40>] (warn_slowpath_fmt) from [<
c040cd50>] (drm_atomic_helper_wait_for_vblanks.part.1+0x298/0x2a0)
[<
c040cd50>] (drm_atomic_helper_wait_for_vblanks.part.1) from [<
c040e694>] (drm_atomic_helper_commit_tail_rpm+0x5c/0x6c)
[<
c040e694>] (drm_atomic_helper_commit_tail_rpm) from [<
c040e4dc>] (commit_tail+0x40/0x6c)
[<
c040e4dc>] (commit_tail) from [<
c040e5cc>] (drm_atomic_helper_commit+0xbc/0x128)
[<
c040e5cc>] (drm_atomic_helper_commit) from [<
c0411b64>] (restore_fbdev_mode_atomic+0x1cc/0x1dc)
[<
c0411b64>] (restore_fbdev_mode_atomic) from [<
c04156f8>] (drm_fb_helper_restore_fbdev_mode_unlocked+0x54/0xa0)
[<
c04156f8>] (drm_fb_helper_restore_fbdev_mode_unlocked) from [<
c0415774>] (drm_fb_helper_set_par+0x30/0x54)
[<
c0415774>] (drm_fb_helper_set_par) from [<
c03ad450>] (fbcon_init+0x560/0x5ac)
[<
c03ad450>] (fbcon_init) from [<
c03eb8a0>] (visual_init+0xbc/0x104)
[<
c03eb8a0>] (visual_init) from [<
c03ed1b8>] (do_bind_con_driver+0x1b0/0x390)
[<
c03ed1b8>] (do_bind_con_driver) from [<
c03ed780>] (do_take_over_console+0x13c/0x1c4)
[<
c03ed780>] (do_take_over_console) from [<
c03ad800>] (do_fbcon_takeover+0x74/0xcc)
[<
c03ad800>] (do_fbcon_takeover) from [<
c013c9c8>] (notifier_call_chain+0x44/0x84)
[<
c013c9c8>] (notifier_call_chain) from [<
c013cd20>] (__blocking_notifier_call_chain+0x48/0x60)
[<
c013cd20>] (__blocking_notifier_call_chain) from [<
c013cd50>] (blocking_notifier_call_chain+0x18/0x20)
[<
c013cd50>] (blocking_notifier_call_chain) from [<
c03a6e44>] (register_framebuffer+0x1e0/0x2f8)
[<
c03a6e44>] (register_framebuffer) from [<
c04153c0>] (__drm_fb_helper_initial_config_and_unlock+0x2fc/0x50c)
[<
c04153c0>] (__drm_fb_helper_initial_config_and_unlock) from [<
c04158c8>] (drm_fbdev_client_hotplug+0xe8/0x1b8)
[<
c04158c8>] (drm_fbdev_client_hotplug) from [<
c0415a20>] (drm_fbdev_generic_setup+0x88/0x118)
[<
c0415a20>] (drm_fbdev_generic_setup) from [<
c043f060>] (sun4i_drv_bind+0x128/0x160)
[<
c043f060>] (sun4i_drv_bind) from [<
c044b598>] (try_to_bring_up_master+0x164/0x1a0)
[<
c044b598>] (try_to_bring_up_master) from [<
c044b668>] (__component_add+0x94/0x140)
[<
c044b668>] (__component_add) from [<
c0445e1c>] (sun6i_dsi_probe+0x144/0x234)
[<
c0445e1c>] (sun6i_dsi_probe) from [<
c0452ef4>] (platform_drv_probe+0x48/0x9c)
[<
c0452ef4>] (platform_drv_probe) from [<
c04512cc>] (really_probe+0x1dc/0x2c8)
[<
c04512cc>] (really_probe) from [<
c0451518>] (driver_probe_device+0x60/0x160)
[<
c0451518>] (driver_probe_device) from [<
c044f7a4>] (bus_for_each_drv+0x74/0xb8)
[<
c044f7a4>] (bus_for_each_drv) from [<
c045107c>] (__device_attach+0xd0/0x13c)
[<
c045107c>] (__device_attach) from [<
c0450474>] (bus_probe_device+0x84/0x8c)
[<
c0450474>] (bus_probe_device) from [<
c0450900>] (deferred_probe_work_func+0x64/0x90)
[<
c0450900>] (deferred_probe_work_func) from [<
c0135970>] (process_one_work+0x204/0x420)
[<
c0135970>] (process_one_work) from [<
c013690c>] (worker_thread+0x274/0x5a0)
[<
c013690c>] (worker_thread) from [<
c013b3d8>] (kthread+0x11c/0x14c)
[<
c013b3d8>] (kthread) from [<
c01010e8>] (ret_from_fork+0x14/0x2c)
Exception stack(0xde539fb0 to 0xde539ff8)
9fa0:
00000000 00000000 00000000 00000000
9fc0:
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0:
00000000 00000000 00000000 00000000 00000013 00000000
---[ end trace
495200a78b24980e ]---
random: fast init done
[drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:46:crtc-0] flip_done timed out
[drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:48:DSI-1] flip_done timed out
[drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:30:plane-0] flip_done timed out
With the terms(as described in above diagram) fixed, the panel
displays correctly without any timeouts.
Tested-by: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191006160303.24413-2-icenowy@aosc.io
Dave Airlie [Tue, 8 Oct 2019 02:54:38 +0000 (12:54 +1000)]
Merge tag 'drm-intel-next-2019-10-07' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Never allow userptr into the mappable GGTT (Chris)
No existing users. Avoid anyone from even trying to
spare a deadlock scenario.
Cross-subsystem Changes:
Core Changes:
Driver Changes:
- Eliminate struct_mutex use as BKL! (Chris)
Only used for execbuf serialisation.
- Initialize DDI TC and TBT ports (D-I) on Tigerlake (Lucas)
- Fix DKL link training for 2.7GHz and 1.62GHz (Jose)
- Add Tigerlake DKL PHY programming sequences (Clinton)
- Add Tigerlake Thunderbolt PLL divider values (Imre)
- drm/i915: Use helpers for drm_mm_node booleans (Chris)
- Restrict L3 remapping sysfs interface to dwords (Chris)
- Fix audio power up sequence for gen10+ display (Kai)
- Skip redundant execlist resubmission (Chris)
- Only unwedge if we can reset GPU first (Chris)
- Initialise breadcrumb lists on the virtual engine (Chris)
- Don't rely on kernel context existing during early errors (Matt A)
- Update Icelake+ MG_DP_MODE programming table (Clinton)
- Update DMC firmware for Icelake (Anusha)
- Downgrade DP MST error after unplugging TypeC cable (Srinivasan)
- Limit MST modes based on plane size too (Ville)
- Polish intel_tv_mode_valid() (Ville)
- Fix g4x sprite scaling stride check with GTT remapping (Ville)
- Don't advertize non-exisiting crtcs (Ville)
- Clean up encoder->crtc_mask setup (Ville)
- Use tc_port instead of port parameter to MG registers (Jose)
- Remove static variable for aux last status (Jani)
- Implement a better i945gm vblank irq vs. C-states workaround (Ville)
- Make the object creation interface consistent (CQ)
- Rename intel_vga_msr_write() to intel_vga_reset_io_mem() (Jani, Ville)
- Eliminate previous drm_dbg/drm_err usage (Jani)
- Move gmbus setup down to intel_modeset_init() (Jani)
- Abstract all vgaarb access to intel_vga.[ch] (Jani)
- Split out i915_switcheroo.[ch] from i915_drv.c (Jani)
- Use intel_gt in has_reset* (Chris)
- Eliminate return value for i915_gem_init_early (Matt A)
- Selftest improvements (Chris)
- Update HuC firmware header version number format (Daniele)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191007134801.GA24313@jlahtine-desk.ger.corp.intel.com
Chris Wilson [Sun, 6 Oct 2019 16:49:54 +0000 (17:49 +0100)]
drm/i915/gt: Treat a busy timeline as 'active' while waiting
If we cannot claim the timeline->mutex while preparing for a wait on it,
we have to skip the timeline. In doing so, treat it as active so that
under a intel_gt_wait_for_idle() loop, we repeat the wait after
scheduling away.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191006165002.30312-4-chris@chris-wilson.co.uk
Chris Wilson [Fri, 4 Oct 2019 20:31:21 +0000 (21:31 +0100)]
drm/i915/selftests: Appease lockdep
Disable irqs around updating the context image to keep lockdep happy:
<4>[ 673.483340] WARNING: possible irq lock inversion dependency detected
<4>[ 673.483342] 5.4.0-rc1-CI-Trybot_5118+ #1 Tainted: G U
<4>[ 673.483342] --------------------------------------------------------
<4>[ 673.483343] swapper/2/0 just changed the state of lock:
<4>[ 673.483344]
ffff88845db885a0 (&i915_request_get(rq)->submit/1){-...}, at: __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.483387] but this lock took another, HARDIRQ-unsafe lock in the past:
<4>[ 673.483388] (&ce->pin_mutex/2){+...}
<4>[ 673.483389]
and interrupts could create inverse lock ordering between them.
<4>[ 673.483390]
other info that might help us debug this:
<4>[ 673.483390] Chain exists of:
&i915_request_get(rq)->submit/1 --> &engine->active.lock --> &ce->pin_mutex/2
<4>[ 673.483392] Possible interrupt unsafe locking scenario:
<4>[ 673.483392] CPU0 CPU1
<4>[ 673.483393] ---- ----
<4>[ 673.483393] lock(&ce->pin_mutex/2);
<4>[ 673.483394] local_irq_disable();
<4>[ 673.483395] lock(&i915_request_get(rq)->submit/1);
<4>[ 673.483396] lock(&engine->active.lock);
<4>[ 673.483396] <Interrupt>
<4>[ 673.483397] lock(&i915_request_get(rq)->submit/1);
<4>[ 673.483398]
*** DEADLOCK ***
<4>[ 673.483398] 2 locks held by swapper/2/0:
<4>[ 673.483399] #0:
ffff8883f61ac9b0 (&(>->irq_lock)->rlock){-.-.}, at: gen11_gt_irq_handler+0x42/0x280 [i915]
<4>[ 673.483433] #1:
ffff88845db8c418 (&(&rq->lock)->rlock){-.-.}, at: intel_engine_breadcrumbs_irq+0x34a/0x5a0 [i915]
<4>[ 673.483463]
the shortest dependencies between 2nd lock and 1st lock:
<4>[ 673.483466] -> (&ce->pin_mutex/2){+...} ops: 614520 {
<4>[ 673.483468] HARDIRQ-ON-W at:
<4>[ 673.483471] lock_acquire+0xa7/0x1c0
<4>[ 673.483501] live_unlite_restore+0x1d8/0x6c0 [i915]
<4>[ 673.483543] __i915_subtests+0xb8/0x210 [i915]
<4>[ 673.483581] __run_selftests+0x112/0x170 [i915]
<4>[ 673.483615] i915_live_selftests+0x2c/0x60 [i915]
<4>[ 673.483644] i915_pci_probe+0x93/0x1b0 [i915]
<4>[ 673.483646] pci_device_probe+0x9e/0x120
<4>[ 673.483648] really_probe+0xea/0x420
<4>[ 673.483649] driver_probe_device+0x10b/0x120
<4>[ 673.483651] device_driver_attach+0x4a/0x50
<4>[ 673.483652] __driver_attach+0x97/0x130
<4>[ 673.483653] bus_for_each_dev+0x74/0xc0
<4>[ 673.483654] bus_add_driver+0x142/0x220
<4>[ 673.483655] driver_register+0x56/0xf0
<4>[ 673.483657] do_one_initcall+0x58/0x2ff
<4>[ 673.483659] do_init_module+0x56/0x1f8
<4>[ 673.483660] load_module+0x243e/0x29f0
<4>[ 673.483661] __do_sys_finit_module+0xe9/0x110
<4>[ 673.483662] do_syscall_64+0x4f/0x210
<4>[ 673.483665] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 673.483665] INITIAL USE at:
<4>[ 673.483667] lock_acquire+0xa7/0x1c0
<4>[ 673.483698] live_unlite_restore+0x1d8/0x6c0 [i915]
<4>[ 673.483733] __i915_subtests+0xb8/0x210 [i915]
<4>[ 673.483764] __run_selftests+0x112/0x170 [i915]
<4>[ 673.483793] i915_live_selftests+0x2c/0x60 [i915]
<4>[ 673.483821] i915_pci_probe+0x93/0x1b0 [i915]
<4>[ 673.483822] pci_device_probe+0x9e/0x120
<4>[ 673.483824] really_probe+0xea/0x420
<4>[ 673.483825] driver_probe_device+0x10b/0x120
<4>[ 673.483826] device_driver_attach+0x4a/0x50
<4>[ 673.483827] __driver_attach+0x97/0x130
<4>[ 673.483828] bus_for_each_dev+0x74/0xc0
<4>[ 673.483829] bus_add_driver+0x142/0x220
<4>[ 673.483830] driver_register+0x56/0xf0
<4>[ 673.483831] do_one_initcall+0x58/0x2ff
<4>[ 673.483833] do_init_module+0x56/0x1f8
<4>[ 673.483834] load_module+0x243e/0x29f0
<4>[ 673.483835] __do_sys_finit_module+0xe9/0x110
<4>[ 673.483836] do_syscall_64+0x4f/0x210
<4>[ 673.483837] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 673.483838] }
<4>[ 673.483868] ... key at: [<
ffffffffa0a8f132>] __key.70113+0x2/0xffffffffffef2ed0 [i915]
<4>[ 673.483869] ... acquired at:
<4>[ 673.483935] __execlists_reset+0xfb/0xc20 [i915]
<4>[ 673.483965] execlists_reset+0x3d/0x50 [i915]
<4>[ 673.483995] intel_engine_reset+0xdf/0x230 [i915]
<4>[ 673.484022] live_preempt_hang+0x1d7/0x2e0 [i915]
<4>[ 673.484064] __i915_subtests+0xb8/0x210 [i915]
<4>[ 673.484130] __run_selftests+0x112/0x170 [i915]
<4>[ 673.484163] i915_live_selftests+0x2c/0x60 [i915]
<4>[ 673.484193] i915_pci_probe+0x93/0x1b0 [i915]
<4>[ 673.484194] pci_device_probe+0x9e/0x120
<4>[ 673.484195] really_probe+0xea/0x420
<4>[ 673.484196] driver_probe_device+0x10b/0x120
<4>[ 673.484197] device_driver_attach+0x4a/0x50
<4>[ 673.484198] __driver_attach+0x97/0x130
<4>[ 673.484199] bus_for_each_dev+0x74/0xc0
<4>[ 673.484200] bus_add_driver+0x142/0x220
<4>[ 673.484202] driver_register+0x56/0xf0
<4>[ 673.484203] do_one_initcall+0x58/0x2ff
<4>[ 673.484204] do_init_module+0x56/0x1f8
<4>[ 673.484205] load_module+0x243e/0x29f0
<4>[ 673.484206] __do_sys_finit_module+0xe9/0x110
<4>[ 673.484207] do_syscall_64+0x4f/0x210
<4>[ 673.484208] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 673.484209] -> (&engine->active.lock){..-.} ops: 972791 {
<4>[ 673.484211] IN-SOFTIRQ-W at:
<4>[ 673.484213] lock_acquire+0xa7/0x1c0
<4>[ 673.484214] _raw_spin_lock_irqsave+0x33/0x50
<4>[ 673.484244] execlists_submission_tasklet+0xaf/0x100 [i915]
<4>[ 673.484246] tasklet_action_common.isra.18+0x6c/0x1c0
<4>[ 673.484247] __do_softirq+0xdf/0x47f
<4>[ 673.484248] irq_exit+0xba/0xc0
<4>[ 673.484249] do_IRQ+0x83/0x160
<4>[ 673.484250] ret_from_intr+0x0/0x1d
<4>[ 673.484252] cpuidle_enter_state+0xb2/0x450
<4>[ 673.484253] cpuidle_enter+0x24/0x40
<4>[ 673.484254] do_idle+0x1e7/0x250
<4>[ 673.484256] cpu_startup_entry+0x14/0x20
<4>[ 673.484257] start_secondary+0x15f/0x1b0
<4>[ 673.484258] secondary_startup_64+0xa4/0xb0
<4>[ 673.484259] INITIAL USE at:
<4>[ 673.484261] lock_acquire+0xa7/0x1c0
<4>[ 673.484290] intel_engine_init_active+0x7e/0xb0 [i915]
<4>[ 673.484305] intel_engines_setup+0x1cd/0x3b0 [i915]
<4>[ 673.484305] i915_gem_init+0x12d/0x900 [i915]
<4>[ 673.484305] i915_driver_probe+0xb70/0x15d0 [i915]
<4>[ 673.484305] i915_pci_probe+0x43/0x1b0 [i915]
<4>[ 673.484305] pci_device_probe+0x9e/0x120
<4>[ 673.484305] really_probe+0xea/0x420
<4>[ 673.484305] driver_probe_device+0x10b/0x120
<4>[ 673.484305] device_driver_attach+0x4a/0x50
<4>[ 673.484305] __driver_attach+0x97/0x130
<4>[ 673.484305] bus_for_each_dev+0x74/0xc0
<4>[ 673.484305] bus_add_driver+0x142/0x220
<4>[ 673.484305] driver_register+0x56/0xf0
<4>[ 673.484305] do_one_initcall+0x58/0x2ff
<4>[ 673.484305] do_init_module+0x56/0x1f8
<4>[ 673.484305] load_module+0x243e/0x29f0
<4>[ 673.484305] __do_sys_finit_module+0xe9/0x110
<4>[ 673.484305] do_syscall_64+0x4f/0x210
<4>[ 673.484305] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 673.484305] }
<4>[ 673.484305] ... key at: [<
ffffffffa0a8f160>] __key.70307+0x0/0xffffffffffef2ea0 [i915]
<4>[ 673.484305] ... acquired at:
<4>[ 673.484305] _raw_spin_lock_irqsave+0x33/0x50
<4>[ 673.484305] execlists_submit_request+0x2b/0x1e0 [i915]
<4>[ 673.484305] submit_notify+0xa8/0x13c [i915]
<4>[ 673.484305] __i915_sw_fence_complete+0x81/0x250 [i915]
<4>[ 673.484305] i915_sw_fence_wake+0x51/0x70 [i915]
<4>[ 673.484305] __i915_sw_fence_complete+0x1ee/0x250 [i915]
<4>[ 673.484305] dma_i915_sw_fence_wake+0x1b/0x30 [i915]
<4>[ 673.484305] dma_fence_signal_locked+0x9e/0x1b0
<4>[ 673.484305] dma_fence_signal+0x1f/0x40
<4>[ 673.484305] fence_work+0x28/0x80 [i915]
<4>[ 673.484305] process_one_work+0x26a/0x620
<4>[ 673.484305] worker_thread+0x37/0x380
<4>[ 673.484305] kthread+0x119/0x130
<4>[ 673.484305] ret_from_fork+0x24/0x50
<4>[ 673.484305] -> (&i915_request_get(rq)->submit/1){-...} ops: 857694 {
<4>[ 673.484305] IN-HARDIRQ-W at:
<4>[ 673.484305] lock_acquire+0xa7/0x1c0
<4>[ 673.484305] _raw_spin_lock_irqsave_nested+0x39/0x50
<4>[ 673.484305] __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.484305] intel_engine_breadcrumbs_irq+0x3d0/0x5a0 [i915]
<4>[ 673.484305] cs_irq_handler+0x39/0x50 [i915]
<4>[ 673.484305] gen11_gt_irq_handler+0x17b/0x280 [i915]
<4>[ 673.484305] gen11_irq_handler+0x54/0xf0 [i915]
<4>[ 673.484305] __handle_irq_event_percpu+0x41/0x2c0
<4>[ 673.484305] handle_irq_event_percpu+0x2b/0x70
<4>[ 673.484305] handle_irq_event+0x2f/0x50
<4>[ 673.484305] handle_edge_irq+0x99/0x1b0
<4>[ 673.484305] do_IRQ+0x7e/0x160
<4>[ 673.484305] ret_from_intr+0x0/0x1d
<4>[ 673.484305] cpuidle_enter_state+0xb2/0x450
<4>[ 673.484305] cpuidle_enter+0x24/0x40
<4>[ 673.484305] do_idle+0x1e7/0x250
<4>[ 673.484305] cpu_startup_entry+0x14/0x20
<4>[ 673.484305] start_secondary+0x15f/0x1b0
<4>[ 673.484305] secondary_startup_64+0xa4/0xb0
<4>[ 673.484305] INITIAL USE at:
<4>[ 673.484305] lock_acquire+0xa7/0x1c0
<4>[ 673.484305] _raw_spin_lock_irqsave_nested+0x39/0x50
<4>[ 673.484305] __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.484305] __engine_park+0x233/0x420 [i915]
<4>[ 673.484305] ____intel_wakeref_put_last+0x1c/0x70 [i915]
<4>[ 673.484305] intel_gt_resume+0x202/0x2c0 [i915]
<4>[ 673.484305] i915_gem_init+0x36e/0x900 [i915]
<4>[ 673.484305] i915_driver_probe+0xb70/0x15d0 [i915]
<4>[ 673.484305] i915_pci_probe+0x43/0x1b0 [i915]
<4>[ 673.484305] pci_device_probe+0x9e/0x120
<4>[ 673.484305] really_probe+0xea/0x420
<4>[ 673.484305] driver_probe_device+0x10b/0x120
<4>[ 673.484305] device_driver_attach+0x4a/0x50
<4>[ 673.484305] __driver_attach+0x97/0x130
<4>[ 673.484305] bus_for_each_dev+0x74/0xc0
<4>[ 673.484305] bus_add_driver+0x142/0x220
<4>[ 673.484305] driver_register+0x56/0xf0
<4>[ 673.484305] do_one_initcall+0x58/0x2ff
<4>[ 673.484305] do_init_module+0x56/0x1f8
<4>[ 673.484305] load_module+0x243e/0x29f0
<4>[ 673.484305] __do_sys_finit_module+0xe9/0x110
<4>[ 673.484305] do_syscall_64+0x4f/0x210
<4>[ 673.484305] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 673.484305] }
<4>[ 673.484305] ... key at: [<
ffffffffa0a8f6a1>] __key.80173+0x1/0xffffffffffef2960 [i915]
<4>[ 673.484305] ... acquired at:
<4>[ 673.484305] mark_lock+0x382/0x500
<4>[ 673.484305] __lock_acquire+0x7e1/0x15d0
<4>[ 673.484305] lock_acquire+0xa7/0x1c0
<4>[ 673.484305] _raw_spin_lock_irqsave_nested+0x39/0x50
<4>[ 673.484305] __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.484305] intel_engine_breadcrumbs_irq+0x3d0/0x5a0 [i915]
<4>[ 673.484305] cs_irq_handler+0x39/0x50 [i915]
<4>[ 673.484305] gen11_gt_irq_handler+0x17b/0x280 [i915]
<4>[ 673.484305] gen11_irq_handler+0x54/0xf0 [i915]
<4>[ 673.484305] __handle_irq_event_percpu+0x41/0x2c0
<4>[ 673.484305] handle_irq_event_percpu+0x2b/0x70
<4>[ 673.484305] handle_irq_event+0x2f/0x50
<4>[ 673.484305] handle_edge_irq+0x99/0x1b0
<4>[ 673.484305] do_IRQ+0x7e/0x160
<4>[ 673.484305] ret_from_intr+0x0/0x1d
<4>[ 673.484305] cpuidle_enter_state+0xb2/0x450
<4>[ 673.484305] cpuidle_enter+0x24/0x40
<4>[ 673.484305] do_idle+0x1e7/0x250
<4>[ 673.484305] cpu_startup_entry+0x14/0x20
<4>[ 673.484305] start_secondary+0x15f/0x1b0
<4>[ 673.484305] secondary_startup_64+0xa4/0xb0
<4>[ 673.484305]
stack backtrace:
<4>[ 673.484305] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G U 5.4.0-rc1-CI-Trybot_5118+ #1
<4>[ 673.484305] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS ICLSFWR1.R00.3183.A00.
1905020411 05/02/2019
<4>[ 673.484305] Call Trace:
<4>[ 673.484305] <IRQ>
<4>[ 673.484305] dump_stack+0x67/0x9b
<4>[ 673.484305] check_usage_forwards+0x13c/0x150
<4>[ 673.484305] ? mark_lock+0x382/0x500
<4>[ 673.484305] mark_lock+0x382/0x500
<4>[ 673.484305] ? check_usage_backwards+0x140/0x140
<4>[ 673.484305] __lock_acquire+0x7e1/0x15d0
<4>[ 673.484305] ? debug_object_deactivate+0x17e/0x190
<4>[ 673.484305] lock_acquire+0xa7/0x1c0
<4>[ 673.484305] ? __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.484305] _raw_spin_lock_irqsave_nested+0x39/0x50
<4>[ 673.484305] ? __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.484305] __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 673.484305] intel_engine_breadcrumbs_irq+0x3d0/0x5a0 [i915]
<4>[ 673.484305] cs_irq_handler+0x39/0x50 [i915]
<4>[ 673.484305] gen11_gt_irq_handler+0x17b/0x280 [i915]
<4>[ 673.484305] gen11_irq_handler+0x54/0xf0 [i915]
<4>[ 673.484305] __handle_irq_event_percpu+0x41/0x2c0
<4>[ 673.484305] handle_irq_event_percpu+0x2b/0x70
<4>[ 673.484305] handle_irq_event+0x2f/0x50
<4>[ 673.484305] handle_edge_irq+0x99/0x1b0
<4>[ 673.484305] do_IRQ+0x7e/0x160
<4>[ 673.484305] common_interrupt+0xf/0xf
<4>[ 673.484305] </IRQ>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004203121.31138-1-chris@chris-wilson.co.uk
Chris Wilson [Fri, 4 Oct 2019 19:47:58 +0000 (20:47 +0100)]
drm/i915/execlists: Fix annotation for decoupling virtual request
As we may signal a request and take the engine->active.lock within the
signaler, the engine submission paths have to use a nested annotation on
their requests -- but we guarantee that we can never submit on the same
engine as the signaling fence.
<4>[ 723.763281] WARNING: possible circular locking dependency detected
<4>[ 723.763285] 5.3.0-g80fa0e042cdb-drmtip_379+ #1 Tainted: G U
<4>[ 723.763288] ------------------------------------------------------
<4>[ 723.763291] gem_exec_await/1388 is trying to acquire lock:
<4>[ 723.763294]
ffff93a7b53221d8 (&engine->active.lock){..-.}, at: execlists_submit_request+0x2b/0x1e0 [i915]
<4>[ 723.763378]
but task is already holding lock:
<4>[ 723.763381]
ffff93a7c25f6d20 (&i915_request_get(rq)->submit/1){-.-.}, at: __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 723.763420]
which lock already depends on the new lock.
<4>[ 723.763423]
the existing dependency chain (in reverse order) is:
<4>[ 723.763427]
-> #2 (&i915_request_get(rq)->submit/1){-.-.}:
<4>[ 723.763434] _raw_spin_lock_irqsave_nested+0x39/0x50
<4>[ 723.763478] __i915_sw_fence_complete+0x1b2/0x250 [i915]
<4>[ 723.763513] intel_engine_breadcrumbs_irq+0x3aa/0x5e0 [i915]
<4>[ 723.763600] cs_irq_handler+0x49/0x50 [i915]
<4>[ 723.763659] gen11_gt_irq_handler+0x17b/0x280 [i915]
<4>[ 723.763690] gen11_irq_handler+0x54/0xf0 [i915]
<4>[ 723.763695] __handle_irq_event_percpu+0x41/0x2d0
<4>[ 723.763699] handle_irq_event_percpu+0x2b/0x70
<4>[ 723.763702] handle_irq_event+0x2f/0x50
<4>[ 723.763706] handle_edge_irq+0xee/0x1a0
<4>[ 723.763709] do_IRQ+0x7e/0x160
<4>[ 723.763712] ret_from_intr+0x0/0x1d
<4>[ 723.763717] __slab_alloc.isra.28.constprop.33+0x4f/0x70
<4>[ 723.763720] kmem_cache_alloc+0x28d/0x2f0
<4>[ 723.763724] vm_area_dup+0x15/0x40
<4>[ 723.763727] dup_mm+0x2dd/0x550
<4>[ 723.763730] copy_process+0xf21/0x1ef0
<4>[ 723.763734] _do_fork+0x71/0x670
<4>[ 723.763737] __se_sys_clone+0x6e/0xa0
<4>[ 723.763741] do_syscall_64+0x4f/0x210
<4>[ 723.763744] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 723.763747]
-> #1 (&(&rq->lock)->rlock#2){-.-.}:
<4>[ 723.763752] _raw_spin_lock+0x2a/0x40
<4>[ 723.763789] __unwind_incomplete_requests+0x3eb/0x450 [i915]
<4>[ 723.763825] __execlists_submission_tasklet+0x9ec/0x1d60 [i915]
<4>[ 723.763864] execlists_submission_tasklet+0x34/0x50 [i915]
<4>[ 723.763874] tasklet_action_common.isra.5+0x47/0xb0
<4>[ 723.763878] __do_softirq+0xd8/0x4ae
<4>[ 723.763881] irq_exit+0xa9/0xc0
<4>[ 723.763883] smp_apic_timer_interrupt+0xb7/0x280
<4>[ 723.763887] apic_timer_interrupt+0xf/0x20
<4>[ 723.763892] cpuidle_enter_state+0xae/0x450
<4>[ 723.763895] cpuidle_enter+0x24/0x40
<4>[ 723.763899] do_idle+0x1e7/0x250
<4>[ 723.763902] cpu_startup_entry+0x14/0x20
<4>[ 723.763905] start_secondary+0x15f/0x1b0
<4>[ 723.763908] secondary_startup_64+0xa4/0xb0
<4>[ 723.763911]
-> #0 (&engine->active.lock){..-.}:
<4>[ 723.763916] __lock_acquire+0x15d8/0x1ea0
<4>[ 723.763919] lock_acquire+0xa6/0x1c0
<4>[ 723.763922] _raw_spin_lock_irqsave+0x33/0x50
<4>[ 723.763956] execlists_submit_request+0x2b/0x1e0 [i915]
<4>[ 723.764002] submit_notify+0xa8/0x13c [i915]
<4>[ 723.764035] __i915_sw_fence_complete+0x81/0x250 [i915]
<4>[ 723.764054] i915_sw_fence_wake+0x51/0x64 [i915]
<4>[ 723.764054] __i915_sw_fence_complete+0x1ee/0x250 [i915]
<4>[ 723.764054] dma_i915_sw_fence_wake_timer+0x14/0x20 [i915]
<4>[ 723.764054] dma_fence_signal_locked+0x9e/0x1c0
<4>[ 723.764054] dma_fence_signal+0x1f/0x40
<4>[ 723.764054] vgem_fence_signal_ioctl+0x67/0xc0 [vgem]
<4>[ 723.764054] drm_ioctl_kernel+0x83/0xf0
<4>[ 723.764054] drm_ioctl+0x2f3/0x3b0
<4>[ 723.764054] do_vfs_ioctl+0xa0/0x6f0
<4>[ 723.764054] ksys_ioctl+0x35/0x60
<4>[ 723.764054] __x64_sys_ioctl+0x11/0x20
<4>[ 723.764054] do_syscall_64+0x4f/0x210
<4>[ 723.764054] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 723.764054]
other info that might help us debug this:
<4>[ 723.764054] Chain exists of:
&engine->active.lock --> &(&rq->lock)->rlock#2 --> &i915_request_get(rq)->submit/1
<4>[ 723.764054] Possible unsafe locking scenario:
<4>[ 723.764054] CPU0 CPU1
<4>[ 723.764054] ---- ----
<4>[ 723.764054] lock(&i915_request_get(rq)->submit/1);
<4>[ 723.764054] lock(&(&rq->lock)->rlock#2);
<4>[ 723.764054] lock(&i915_request_get(rq)->submit/1);
<4>[ 723.764054] lock(&engine->active.lock);
<4>[ 723.764054]
*** DEADLOCK ***
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111862
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004194758.19679-1-chris@chris-wilson.co.uk
Chris Wilson [Mon, 7 Oct 2019 15:45:31 +0000 (16:45 +0100)]
drm/i915/gt: Prefer local path to runtime powermanagement
Avoid going to the base i915 device when we already have a path from gt
to the runtime powermanagement interface. The benefit is that it looks a
bit more self-consistent to always be acquiring the gt->uncore->rpm for
use with the gt->uncore.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191007154531.1750-1-chris@chris-wilson.co.uk
Colin Ian King [Mon, 7 Oct 2019 15:41:51 +0000 (16:41 +0100)]
drm/i915: make array hw_engine_mask static, makes object smaller
Don't populate the array hw_engine_mask on the stack but instead make it
static. Makes the object code smaller by 316 bytes.
Before:
text data bss dec hex filename
34004 4388 320 38712 9738 gpu/drm/i915/gt/intel_reset.o
After:
text data bss dec hex filename
33528 4548 320 38396 95fc gpu/drm/i915/gt/intel_reset.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191007154151.23245-1-colin.king@canonical.com
Nishka Dasgupta [Tue, 13 Aug 2019 09:05:03 +0000 (14:35 +0530)]
drm/tilcdc: plane: Make structure tilcdc_plane_funcs constant
The static structure tilcdc_plane_funcs, of type drm_plane_funcs, is
used only when passed the fourth argument to drm_plane_init(); however,
this fourth parameter is declared as const in the function definition.
Hence make tilcdc_plane_funcs constant as well.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190813090503.9063-1-nishkadg.linux@gmail.com
Matt Roper [Wed, 2 Oct 2019 19:22:58 +0000 (12:22 -0700)]
drm/i915/vbt: Child device size remains unchanged through VBT 229
The latest documented version of the VBT is 229, but no further data has
been added to the child device definition in block 2. Update the child
device version test to eliminate the "Expected child device config size
for VBT version XXX not known; assuming 39" debug messages from the
logs.
Bspec: 20124
Bspec: 20157
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191002192258.1013-1-matthew.d.roper@intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Lionel Landwerlin [Mon, 9 Sep 2019 09:31:09 +0000 (12:31 +0300)]
drm/i915/perf: move perf types to their own header
Following a pattern used throughout the driver.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190909093116.7747-7-lionel.g.landwerlin@intel.com
Chris Wilson [Sun, 6 Oct 2019 16:49:53 +0000 (17:49 +0100)]
drm/i915/gt: Restore dropped 'interruptible' flag
Lost in the rebasing was Tvrtko's reminder that we need to keep an
uninterruptible wait around for the Ironlake VT-d w/a
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191006165002.30312-3-chris@chris-wilson.co.uk
Matthias Kaehlcke [Wed, 2 Oct 2019 19:44:06 +0000 (12:44 -0700)]
drm/bridge: dw-hdmi: Refuse DDC/CI transfers on the internal I2C controller
The DDC/CI protocol involves sending a multi-byte request to the
display via I2C, which is typically followed by a multi-byte
response. The internal I2C controller only allows single byte
reads/writes or reads of 8 sequential bytes, hence DDC/CI is not
supported when the internal I2C controller is used. The I2C
transfers complete without errors, however the data in the response
is garbage. Abort transfers to/from slave address 0x37 (DDC) with
-EOPNOTSUPP, to make it evident that the communication is failing.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191002124354.v2.1.I709dfec496f5f0b44a7b61dcd4937924da8d8382@changeid
Joonas Lahtinen [Mon, 7 Oct 2019 12:24:47 +0000 (15:24 +0300)]
drm/i915: Update DRIVER_DATE to
20191007
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Icenowy Zheng [Sun, 6 Oct 2019 16:03:02 +0000 (00:03 +0800)]
drm/sun4i: sun6i_mipi_dsi: fix DCS long write packet length
The packet length of DCS long write packet should not be added with 1
when constructing long write packet.
Fix this.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191006160303.24413-4-icenowy@aosc.io
Icenowy Zheng [Sun, 6 Oct 2019 16:03:01 +0000 (00:03 +0800)]
drm/sun4i: dsi: fix the overhead of the horizontal front porch
The formula in the BSP kernel indicates that a 16-byte overhead is used
when sending the HFP. However, this value is currently set to 6 in the
sun6i_mipi_dsi driver, which makes some panels flashing.
Fix this overhead value.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191006160303.24413-3-icenowy@aosc.io
Hans Verkuil [Fri, 4 Oct 2019 11:04:24 +0000 (13:04 +0200)]
cec: add cec_adapter to cec_notifier_cec_adap_unregister()
It is possible for one HDMI connector to have multiple CEC adapters. The
typical real-world scenario is that where one adapter is used when the
device is in standby, and one that's better/smarter when the device is
powered up.
The cec-notifier changes were made with that in mind, but I missed that in
order to support this you need to tell cec_notifier_cec_adap_unregister()
which adapter you are unregistering from the notifier.
Add this additional argument. It is currently unused, but once all drivers
use this, the CEC core will be adapted for these use-cases.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/e9fc8740-6be6-43a7-beee-ce2d7b54936e@xs4all.nl
Linus Torvalds [Sun, 6 Oct 2019 21:27:30 +0000 (14:27 -0700)]
Linux 5.4-rc2
Linus Torvalds [Sun, 6 Oct 2019 20:53:27 +0000 (13:53 -0700)]
elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings
In commit
4ed28639519c ("fs, elf: drop MAP_FIXED usage from elf_map") we
changed elf to use MAP_FIXED_NOREPLACE instead of MAP_FIXED for the
executable mappings.
Then, people reported that it broke some binaries that had overlapping
segments from the same file, and commit
ad55eac74f20 ("elf: enforce
MAP_FIXED on overlaying elf segments") re-instated MAP_FIXED for some
overlaying elf segment cases. But only some - despite the summary line
of that commit, it only did it when it also does a temporary brk vma for
one obvious overlapping case.
Now Russell King reports another overlapping case with old 32-bit x86
binaries, which doesn't trigger that limited case. End result: we had
better just drop MAP_FIXED_NOREPLACE entirely, and go back to MAP_FIXED.
Yes, it's a sign of old binaries generated with old tool-chains, but we
do pride ourselves on not breaking existing setups.
This still leaves MAP_FIXED_NOREPLACE in place for the load_elf_interp()
and the old load_elf_library() use-cases, because nobody has reported
breakage for those. Yet.
Note that in all the cases seen so far, the overlapping elf sections
seem to be just re-mapping of the same executable with different section
attributes. We could possibly introduce a new MAP_FIXED_NOFILECHANGE
flag or similar, which acts like NOREPLACE, but allows just remapping
the same executable file using different protection flags.
It's not clear that would make a huge difference to anything, but if
people really hate that "elf remaps over previous maps" behavior, maybe
at least a more limited form of remapping would alleviate some concerns.
Alternatively, we should take a look at our elf_map() logic to see if we
end up not mapping things properly the first time.
In the meantime, this is the minimal "don't do that then" patch while
people hopefully think about it more.
Reported-by: Russell King <linux@armlinux.org.uk>
Fixes:
4ed28639519c ("fs, elf: drop MAP_FIXED usage from elf_map")
Fixes:
ad55eac74f20 ("elf: enforce MAP_FIXED on overlaying elf segments")
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Oct 2019 18:10:15 +0000 (11:10 -0700)]
Merge tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping regression fix from Christoph Hellwig:
"Revert an incorret hunk from a patch that caused problems on various
arm boards (Andrey Smirnov)"
* tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: fix false positive warnings in dma_common_free_remap()
Jani Nikula [Fri, 4 Oct 2019 12:20:19 +0000 (15:20 +0300)]
drm/i915: move gmbus setup down to intel_modeset_init()
Pair the gmbus setup and teardown in the same layer. This also fixes the
double gmbus teardown on the i915_driver_modeset_probe() error path.
Move the gmbus setup a bit later in the sequence to make the follow-up
refactoring easier, and to pinpoint any unexpected consequences of this
change right here, instead of the later refactoring.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004122019.12009-3-jani.nikula@intel.com
Jani Nikula [Fri, 4 Oct 2019 12:20:18 +0000 (15:20 +0300)]
drm/i915: split out i915_switcheroo.[ch] from i915_drv.c
Split out code related to vga switcheroo register/unregister and state
handling from i915_drv.c into new i915_switcheroo.[ch] files.
It's a bit difficult to draw the line how much to move to the new file
from i915_drv.c, but it seemed to me keeping i915_suspend_switcheroo()
and i915_resume_switcheroo() in place was the cleanest.
No functional changes.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004122019.12009-2-jani.nikula@intel.com
Jani Nikula [Fri, 4 Oct 2019 12:20:17 +0000 (15:20 +0300)]
drm/i915/vga: rename intel_vga_msr_write() to intel_vga_reset_io_mem()
Rename the function per Ville's suggestion. No functional changes.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004122019.12009-1-jani.nikula@intel.com
Linus Torvalds [Sun, 6 Oct 2019 00:18:43 +0000 (17:18 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A few fixes this time around:
- Fixup of some clock specifications for DRA7 (device-tree fix)
- Removal of some dead/legacy CPU OPP/PM code for OMAP that throws
warnings at boot
- A few more minor fixups for OMAPs, most around display
- Enable STM32 QSPI as =y since their rootfs sometimes comes from
there
- Switch CONFIG_REMOTEPROC to =y since it went from tristate to bool
- Fix of thermal zone definition for ux500 (5.4 regression)"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: multi_v7_defconfig: Fix SPI_STM32_QSPI support
ARM: dts: ux500: Fix up the CPU thermal zone
arm64/ARM: configs: Change CONFIG_REMOTEPROC from m to y
ARM: dts: am4372: Set memory bandwidth limit for DISPC
ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
ARM: OMAP2+: Add missing LCDC midlemode for am335x
ARM: OMAP2+: Fix missing reset done flag for am3 and am43
ARM: dts: Fix gpio0 flags for am335x-icev2
ARM: omap2plus_defconfig: Enable more droid4 devices as loadable modules
ARM: omap2plus_defconfig: Enable DRM_TI_TFP410
DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
ARM: dts: Fix wrong clocks for dra7 mcasp
clk: ti: dra7: Fix mcasp8 clock bits
Linus Torvalds [Sat, 5 Oct 2019 19:56:59 +0000 (12:56 -0700)]
Merge tag 'kbuild-fixes-v5.4' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- remove unneeded ar-option and KBUILD_ARFLAGS
- remove long-deprecated SUBDIRS
- fix modpost to suppress false-positive warnings for UML builds
- fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
- make setlocalversion work for /bin/sh
- make header archive reproducible
- fix some Makefiles and documents
* tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: make headers archive reproducible
kbuild: update compile-test header list for v5.4-rc2
kbuild: two minor updates for Documentation/kbuild/modules.rst
scripts/setlocalversion: clear local variable to make it work for sh
namespace: fix namespace.pl script to support relative paths
video/logo: do not generate unneeded logo C files
video/logo: remove unneeded *.o pattern from clean-files
integrity: remove pointless subdir-$(CONFIG_...)
integrity: remove unneeded, broken attempt to add -fshort-wchar
modpost: fix static EXPORT_SYMBOL warnings for UML build
kbuild: correct formatting of header in kbuild module docs
kbuild: remove SUBDIRS support
kbuild: remove ar-option and KBUILD_ARFLAGS
Linus Torvalds [Sat, 5 Oct 2019 19:53:27 +0000 (12:53 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Twelve patches mostly small but obvious fixes or cosmetic but small
updates"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix Nport ID display value
scsi: qla2xxx: Fix N2N link up fail
scsi: qla2xxx: Fix N2N link reset
scsi: qla2xxx: Optimize NPIV tear down process
scsi: qla2xxx: Fix stale mem access on driver unload
scsi: qla2xxx: Fix unbound sleep in fcport delete path.
scsi: qla2xxx: Silence fwdump template message
scsi: hisi_sas: Make three functions static
scsi: megaraid: disable device when probe failed after enabled device
scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue
scsi: qedf: Remove always false 'tmp_prio < 0' statement
scsi: ufs: skip shutdown if hba is not powered
scsi: bnx2fc: Handle scope bits when array returns BUSY or TSF
Linus Torvalds [Sat, 5 Oct 2019 19:03:27 +0000 (12:03 -0700)]
Merge branch 'readdir' (readdir speedup and sanity checking)
This makes getdents() and getdents64() do sanity checking on the
pathname that it gives to user space. And to mitigate the performance
impact of that, it first cleans up the way it does the user copying, so
that the code avoids doing the SMAP/PAN updates between each part of the
dirent structure write.
I really wanted to do this during the merge window, but didn't have
time. The conversion of filldir to unsafe_put_user() is something I've
had around for years now in a private branch, but the extra pathname
checking finally made me clean it up to the point where it is mergable.
It's worth noting that the filename validity checking really should be a
bit smarter: it would be much better to delay the error reporting until
the end of the readdir, so that non-corrupted filenames are still
returned. But that involves bigger changes, so let's see if anybody
actually hits the corrupt directory entry case before worrying about it
further.
* branch 'readdir':
Make filldir[64]() verify the directory entry filename is valid
Convert filldir[64]() from __put_user() to unsafe_put_user()
Linus Torvalds [Sat, 5 Oct 2019 18:32:52 +0000 (11:32 -0700)]
Make filldir[64]() verify the directory entry filename is valid
This has been discussed several times, and now filesystem people are
talking about doing it individually at the filesystem layer, so head
that off at the pass and just do it in getdents{64}().
This is partially based on a patch by Jann Horn, but checks for NUL
bytes as well, and somewhat simplified.
There's also commentary about how it might be better if invalid names
due to filesystem corruption don't cause an immediate failure, but only
an error at the end of the readdir(), so that people can still see the
filenames that are ok.
There's also been discussion about just how much POSIX strictly speaking
requires this since it's about filesystem corruption. It's really more
"protect user space from bad behavior" as pointed out by Jann. But
since Eric Biederman looked up the POSIX wording, here it is for context:
"From readdir:
The readdir() function shall return a pointer to a structure
representing the directory entry at the current position in the
directory stream specified by the argument dirp, and position the
directory stream at the next entry. It shall return a null pointer
upon reaching the end of the directory stream. The structure dirent
defined in the <dirent.h> header describes a directory entry.
From definitions:
3.129 Directory Entry (or Link)
An object that associates a filename with a file. Several directory
entries can associate names with the same file.
...
3.169 Filename
A name consisting of 1 to {NAME_MAX} bytes used to name a file. The
characters composing the name may be selected from the set of all
character values excluding the slash character and the null byte. The
filenames dot and dot-dot have special meaning. A filename is
sometimes referred to as a 'pathname component'."
Note that I didn't bother adding the checks to any legacy interfaces
that nobody uses.
Also note that if this ends up being noticeable as a performance
regression, we can fix that to do a much more optimized model that
checks for both NUL and '/' at the same time one word at a time.
We haven't really tended to optimize 'memchr()', and it only checks for
one pattern at a time anyway, and we really _should_ check for NUL too
(but see the comment about "soft errors" in the code about why it
currently only checks for '/')
See the CONFIG_DCACHE_WORD_ACCESS case of hash_name() for how the name
lookup code looks for pathname terminating characters in parallel.
Link: https://lore.kernel.org/lkml/20190118161440.220134-2-jannh@google.com/
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jann Horn <jannh@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 22 May 2016 04:59:07 +0000 (21:59 -0700)]
Convert filldir[64]() from __put_user() to unsafe_put_user()
We really should avoid the "__{get,put}_user()" functions entirely,
because they can easily be mis-used and the original intent of being
used for simple direct user accesses no longer holds in a post-SMAP/PAN
world.
Manually optimizing away the user access range check makes no sense any
more, when the range check is generally much cheaper than the "enable
user accesses" code that the __{get,put}_user() functions still need.
So instead of __put_user(), use the unsafe_put_user() interface with
user_access_{begin,end}() that really does generate better code these
days, and which is generally a nicer interface. Under some loads, the
multiple user writes that filldir() does are actually quite noticeable.
This also makes the dirent name copy use unsafe_put_user() with a couple
of macros. We do not want to make function calls with SMAP/PAN
disabled, and the code this generates is quite good when the
architecture uses "asm goto" for unsafe_put_user() like x86 does.
Note that this doesn't bother with the legacy cases. Nobody should use
them anyway, so performance doesn't really matter there.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jonathan Neuschäfer [Wed, 2 Oct 2019 15:38:26 +0000 (17:38 +0200)]
drm/mcde: Fix reference to DOC comment
The :doc: reference did not match the DOC comment's name.
Fixes:
5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191002153827.23026-1-j.neuschaefer@gmx.net